Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6700016 | Method of purifying and producing acrylic acid or methacrylic acid | Bernd Eck, Jorg Heilek, Volker Schliephake | 2004-03-02 |
| 6685829 | Fluid filter with a discharge dome that is fixed to the housing | Wilhelm Ardes | 2004-02-03 |
| 6683179 | Preparation of caprolactam | Peter Bassler, Rolf Fischer, Eberhard Fuchs, Johann-Peter Melder, Frank Ohlbach | 2004-01-27 |
| 6677449 | Preparation of caprolactam | Peter Bassler, Rolf Fischer, Eberhard Fuchs, Johann-Peter Melder, Frank Ohlbach | 2004-01-13 |